Men's Backpack Bear the ability
Saying that one day, Xiao Bian and friends while shopping street to eat. At that time, did not buy anything, but the feeling of heavy men's backpack incredible, with a spring weighing a weight actually reached 3.5 kg, the bag on a cell phone, an umbrella, key, wallet, a pair of sunglasses, a book , A bottle of water, cosmetics, and a little paper towel. To be honest, Xiaobian was shocked, you may not know, in fact, for a long time carrying more than 3 kg of men's backpack, will affect the health.
The ability to bear the human is relatively poor, but the ant, but also than the horse. Generally speaking, for young people who are in the stage of growth and development, men's backpack weight can not exceed 10% of body weight; physical quality of adults or women in general, men's backpack weight can not exceed 15% of body weight; even a good physical , Men's backpack weight can not exceed 20% of body weight. Buy custom men's backpack, try to use the shoulder-style men's backpack, strap to be wider, the best choice waist and abdomen to help load-bearing style.
You may be dissatisfied, that can bear more heavy, but time will tell you the answer, long time carrying heavy weight men backpack, most people can not stand. If the backpack arm damage caused by heavy backpack, usually after physical therapy, exercise and other methods can be restored, but if the treatment, correction is not timely, it may cause spinal injury, back muscle asymmetry and other serious consequences, should cause Attention. Mention the buckle, I believe we are no stranger, people who have used the bag know that daily life is everywhere visible to ordinary clothes, shoes, hats, camera bags, cell phone bags, etc., as a traveler who loves outdoor activities, It is necessary to understand the performance of the men's backpack and increase the depth of the buckle. Especially in the outdoor men's backpack in the buckle, the security has a very high demand, or if the journey, the buckle suddenly break ass, and really make tears one thing.
The overall composition of the men's backpack, generally by the fabric + waterproof plastic + buckle + zipper + ribbon + backplane + mesh. Now by the luggage Xiaobian, to tell you about the types of buttons and materials.
First, the classification of buckle
Men's backpack buckle is generally divided into buckle (also known as the side of the deduction), the day deduction, ladder buckle, hook buckle, rope buckle, in addition to some more special use, and now introduce the characteristics of these fasteners,